The First U.S. Patent
| First published | August 1942 |
|---|---|
| Type | Essay |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| August 1942 | Fantastic Adventures, August 1942 | Ziff-Davis Publishing Company | MAGAZINE | 187 |
| 1943 | Fantastic Adventures Quarterly, Spring 1943 | Ziff-Davis Publishing Company | MAGAZINE | 187 |